Support for hoisting and conveying apparatus.



Patented Feb. 14, 1911.

T. S. MILLER & J. H. DICKINSON. SUPPORT FOR HOISTING AND CONVEYING APPARATUS APPLIOATION FILED MAR. 15, 1906.

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"Tfs. MILLER a; J. HQDIOKINSON, 3 SUPPORT FOR HOIS TING' AND CONVEYING APPARATUS.

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UNITED STATES PATENT OFFICE.

THOMAS SPENCER MILLER, OF SOUTH ORANGE, AND iTOSEPH H. DICKINSON, OF

MONTCLAIR,

NEW JERSEY.

SUPPOR'IVFOR HOISTI NG AND CONVEYING APPARATUS.

Specification of Letters Patent.

Patented Feb. 14, 1911.

Application filed March 15, 1906. Serial No. 806,110.

,i To all whom it ma: concern:

The present invention may be stated to be in the nature of an improved portable tower,

and we have especially in contemplation the provision of means whereby such tower may be raised and lowered upon a car to permit of its movement from place to place and to permit the same to be easily and quickly established inpo-sition .for use.

,To this end our invention consists in the construction, combination and arrangement of parts set forth in and falling within the scope of the appended claims, and whilcwe structure haveherein shown and described a preferred embodiment of our invention we wish it to be understood that the same may be subjected to any and all modifications fallin within the scope of the claims.

7 In the accompanying drawings like characters of reference indicate like parts and views.

Figure [is a view in side elevation of a embracing our improvements. Fig. 2 is a view 111 end elevation showing the tower in its elevated position of use, the

supporting structure being partially in section. p

Referring now to the accompanying drawings in detail, the letter'A designates the supporting structure for the tower, which in the present instance is similar to that usedin connection with log loading apparatus and embraces a frame adapted to straddle the tracks 1, upon which tracks a car (not shown) is adapted to run beneath'the frame A, so that when necessary and desired the latter can be lowered on to the car and trans ported from place to place as the-exigencies of the occasion may demand. Upon this platform or structure may be mounted the usual engine 13, embracing the hoisting drums and the like, and in Fig. l we have given a conventional illustration of such ongine and its connected parts. Upon the platform is mounted a support in the nature of tirety by C, the sides 5 and (3 thereof being inclined inward from the outer sides of the car and are connected at their upper ends to each other andto the central braces 7 and 8 through the medium of the. relatively large bolt 9. This-.bolt also performs the important function of acting as a fulcrum point or pivot for the tower or cableway support, which is indicated as a whole by 'the letter C.- This support is in the nature of a tower frame, constructed of any suitable material suchas wood, metal or the lilre, and at a point intermediate its ends is provided with a tubular bearing sleeve 10 through which the pivot bolt 9 passes, and .as will be noted by reference to Fig. 1, the tower when released at its base is free to swing upon this allel with the platform of the support A. and thereby permit the car to pass without interference beneath bridges or around curves during transportation; When theto-wer is ele 'ated to the position shown in Fig. 2 it is necessary to provide some means for fastening theysa-mc to the platform so as to hold the tower stationary when the cablcways are in useand this nia-y be accomplished in any desired or convenient manner. In the present instance we havcsho-wn a relatively large spike or pin 11, passing through a central bore or uperture 12 in the base-block 13 of the tower, said. pin also extending into the bored portion l iof the frame of the platform so that when inits elevated or vertical position the tower may be secured against displacementby the insertion of the pin in the alining apertures or bores of the platform and base of thetower. When the tower or mast is operated to take the position shown in Fig. 2, the base block 13 rests. solidly upon the platform. 'A,'as shown in Fig. 2, so that the strain to which the mast is subjected is :10- calized at the base of the mast instead of The blocks, 'ropes,.sheaves and the like may be mounted in the ordinary and usual manner upon this tower and this construe hon will be found especially advantageous in logging and skidding lumber along raila shear leg. or frame designated as an enpivot point so as to lie approximately par-- being placed upon the pivot connection 9, 10.

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ways or at pomts WH'UIG it is i111possible to find suitable supports for the cableway apparatus. Y

\Vhen the tower is in its lowered position, shown in Fig. 1, the outer or top portion. thereof may be s1.1p ')orted in any suitable 11111111101", preferably by frame-work extending upward from the platform structure, the

engme being located between the support and the frame 0 upon which the towen is fulcrinned.

Having thus described our invention, what we claim and desire to 'secure by Letters Patent is: 4

1. In aport able cablcway, the combination of a portable platform, spaced supporting standards mounted on the platform, a, tower adapted to support a cablcway pivotally supported at a point intermediate its ends on the upper portions of said standards, said tower being movable to a substantially horizontal position, and to a vertical position to support a cableway, in which lat-- ter positionthe base of the tower depends between the supporting structures, means for securing the tower in vertical position a' support for the upper end of the tower when in lowered position, and a hoisting engine mounted on the platform between the said standards and said support.

2. I11 a portable cableway, in combination, a platform spaced supportingstruc} tures thereon, a tower for supporting the cableway pivotally supported at a point intcrmcdiate itsends on the upper portions of said structure, said tower being-movable to a substantially horizontal position, and to a vertical position to support the cableway in which latter position the base of the tower depends between the supporting structures and rests solidly. upon the platform.

'In a portable cableway, in combination, a platform, spaced supporting structures thereon, a tower for supporting the cableway pivotally supported at a point intermedi'ate its ends on the upper portions of i said structure, said tower bemg movable to a substantially horizontal position, and 'to a vertical position to. support the cableway in which latter position the base of the tower depends between the supporting structures and rests solidly upon the platform, and means connecting the base and platform for securing the tower in elevated position.

In a portable cableway, in combination, a platform, a hoisting engine thereon, spaced supporting structures thereon, a tower for supporting the cableway pivotally supported at a point intermediate its ends on the upper portions of said structures said tower being movable to a substantially horizontal position, and to a vertical position to support the cableway, in which latter position the base of the. tower depends between the supporting structures to a point adjacent; the-platform, and means for detachably connecting the. base to the platform.

In witness whereof we have hereunto set our hands this 12th day of March, A. D.- 190tl THOMAS SPENCER MILLER. JOSEPH H. DICKINSON.

\Vitnesses H. G. BARRINGTON, Ennns'r PULSFORD. 

